Style configuration for taxon header image

paperclip.rb

module Spree
  class TaxonHeaderImage < Asset
    module Configuration
      module Paperclip
        extend ActiveSupport::Concern

        included do
          def self.styles
            attachment_definitions[:attachment][:styles]
          end

          delegate :url, to: :attachment

          has_attached_file :attachment,
            styles: { normal: '970>x140' },
                    default_style: :normal,
                    convert_options: { all: '-strip -colorspace sRGB -interlace Plane -quality 60' },
                    s3_headers: { 'Cache-Control' => 'max-age=2592000,public', 'Expires' => 10.years.from_now.httpdate }

          validates_attachment :attachment,
            content_type: { content_type: ['image/jpg', 'image/jpeg', 'image/png', 'image/gif'] }
        end
      end
    end
  end
end